/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.netbeans.modules.xml.schema.model;

import java.util.Collection;
import org.netbeans.modules.xml.xam.Nameable;

/**
 * This is the super interface for Key and Unique.
 * @author Chris Webster
 */
public interface Constraint extends SchemaComponent, NameableSchemaComponent {

    public static final String SELECTOR_PROPERTY = "selector";
    public static final String FIELD_PROPERTY = "field";

    Selector getSelector();
    void setSelector(Selector s);

    Collection<Field> getFields();
    void addField(Field field);
    void deleteField(Field field);
}
